18QHTF21-70.8333-PD

Overview

The 18QHTF21-70.8333-PD is a standard crystal oscillator manufactured by Mercury Electronics Ind. Co. Ltd, operating at a frequency of 70.8333 MHz. It utilizes LVCMOS output logic and functions with a 1.8V supply voltage. The component features a power-down capability for standby mode control. It is housed in a compact 4-SMD, no lead package, designed for surface-mount applications requiring precise timing signals.

Feature Summary

• Supports LVCMOS output logic for digital interface compatibility
• Includes standby power-down functionality to reduce consumption
• Utilizes a 4-SMD no lead surface-mount package

Applications

• General purpose clock signal generation
• Digital circuit timing reference
• Embedded system synchronization

Procurement Notes

Verify the specific frequency tolerance and load capacitance requirements against the target design specifications before procurement. Confirm that the 1.8V supply voltage aligns with the system power rails. Ensure the PCB footprint matches the 4-SMD no lead package dimensions provided in the official datasheet to guarantee proper soldering and electrical connection.

Selection Notes

Select this component when a standard LVCMOS oscillator is required at 70.8333 MHz with low voltage operation. Consider the power-down feature if energy efficiency during idle states is a priority. Evaluate the thermal performance and stability requirements relative to the intended operating environment to ensure reliable long-term performance.

Part Context

This part belongs to the 18QHTF21 series of SMD oscillators from Mercury Electronics. The series offers various frequencies with consistent 1.8V operation and LVCMOS outputs. The 'PD' suffix indicates the inclusion of a power-down pin or function, distinguishing it from standard continuous-operation variants within the same physical package family.

Replacement Considerations

Direct substitutes must match the 70.8333 MHz frequency, LVCMOS output type, 1.8V supply, and 4-SMD no lead package. Verify equivalent frequency stability and phase noise specifications. Cross-reference with other manufacturers offering compatible surface-mount oscillators with identical pinout and electrical characteristics.